After replacing the battery in the MDX vehicle, a fault code appeared, and it cannot start.

Has anyone replaced the central control system on cars after August 2019? If you removed the original system, did it trigger an engine fault code? How did you resolve it?

Is the battery replacement for this electric vehicle free for life?

Why does the transmission often show a fault code and then disappear on its own shortly after?

What are the issues when the warning lights for these fault codes appear on a 2015 MG GT?

The engine fault code flashes at idle and stays on when starting. The fault indicates a misfire in cylinder two. After replacing the ignition coil and spark plugs, and cleaning the injectors, the fault code disappeared but returned after two days. Do you know what might be causing this?

My car failed to start twice, and various fault codes appeared. The diagnosis showed that the ambient light fuse was blown. Have you guys experienced this? How did you solve it?

Just had the 2019 automatic Rapid standard serviced and filled up with a tank of gas, then the engine fault code appeared. Has anyone else experienced this?

Here’s the situation: I just replaced the battery, but it's dead again. After starting the car, after a while, it reports a battery charging fault. Then the ABS and airbag lights also come on. When idling in place, after a while, the car will automatically shut off. When driving, it feels like it doesn't shift gears automatically, and I can't switch to manual mode either. Vehicle: Peugeot 207 1.6 Automatic. The battery wasn't great initially, and I didn't pay much attention to it, usually jump-starting the car. A few days ago, I replaced the battery. First, during driving, it started showing a battery charging fault. After a while, the ABS light came on, then the airbag light lit up as well. It's like a parade of warning lights. Now I'm wondering if it's worth repairing. What could be the issues?

When braking, does this taillight light up? After the dashboard is powered on, all the fault codes light up, but they all disappear once the engine starts. Is this situation normal?

The battery couldn't start the car after 3.5 years and needed replacement, even though the auto start-stop feature was mostly off. Fellow car enthusiasts, when did you replace your battery for the first time?